BIO 1 Chp 3

study of interactions among organisms & between organisms and their physical surroundings is?

All the interconnected feeding relationships in an ecosystem make up a food?

Nitrogen fixation is carried out primarily by?

Plants are?

A word that means the same thing as consumer is?

The total amount of living tissue within a given trophic level is called the?

What is happening at #6 in the picture

Animal get energy by eating carcass of animal that were killed by predator or died naturally is

Which of the following is NOT a basic method used by ecologists to study the world

Matter can be recycled through the biosphere because?

The movements of energy and nutrients through living systems are different because?

The lowest level of environmental complexity that includes living and nonliving factors is the?

Organisms within an ecosystem are __________ factors in that ecosystem.

Which of the following descriptions about the organization of an ecosystem is correct?

algae-zooplankton-small fish-squid-shark. Top consumer is ? steps away from primary producer

Compared to land, the open oceans are?

Each is an abiotic factor in the environment except?

In the water cycle the process of ? happens between transpiration and precipitation

nitrogen was added to an ecosystem: algae,zooplankton,fish,squid,shark. __ pop would increase

branch of biology dealing with interaction among organism & bw organisms & their environment is